MCP603-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP603-I/SN is a voltage-feedback operational amplifier with a maximum input bias current of 0.06 nA and a typical CMRR of 90 dB in an 8-pin SOIC package. It features internal frequency compensation and delivers low-noise signal amplification for precision analog designs. Available from stock with Pb-free RoHS-compliant construction and worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP603-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4064(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP603-I/SN?
- Voltage-feedback op-amp architecture with ultra-low maximum input bias current of 0.06 nA (60 pA), minimizing input loading in high-impedance sensor circuits
- Typical common-mode rejection ratio of 90 dB (minimum 75 dB) ensures excellent noise immunity in single-supply and differential signal paths
- Internally frequency-compensated design in a compact 8-pin SOIC-8 Pb-free package, enabling stable gain without external compensation components
What is MCP603-I/SN used for?
The MCP603-I/SN is suited for precision analog front-end circuits such as pH sensor amplifiers, photodiode transimpedance amplifiers, and low-level thermocouple signal conditioners where its ultra-low 0.06 nA input bias current prevents measurement errors caused by source impedance loading. Its 90 dB typical CMRR makes it effective in differential signal acquisition stages for industrial instrumentation and data-acquisition modules that must reject common-mode noise on sensor cables. The SOIC-8 package and internal frequency compensation simplify PCB layout for mixed-signal designs in medical devices and portable test equipment.
What are the specifications of MCP603-I/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00006 µA |
| Common-mode Reject Ratio-Min | 75dB |
| Common-mode Reject Ratio-Nom | 90dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 3000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Slew Rate-Nom | 2.3V/us |
| Supply Current-Max | 0.325mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 2800 |
| Voltage Gain-Min | 56200 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP603-I/SN datasheet?
MCP603-I/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP603-I/SN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum input bias current of the MCP603-I/SN, and why does it matter for high-impedance sensor interfaces?
The MCP603-I/SN has a maximum input bias current of 0.06 nA (60 pA), which is extremely low. In circuits with source impedances of 1 MΩ or more, such as pH electrodes or photodiodes, this prevents millivolt-level offset errors that would arise with higher bias current op-amps, ensuring measurement accuracy.
How does the 90 dB CMRR of the MCP603-I/SN improve noise rejection in industrial sensor wiring?
The MCP603-I/SN provides a typical common-mode rejection ratio of 90 dB, meaning it attenuates 50/60 Hz power-line interference picked up as common-mode noise on long sensor cables by a factor of approximately 31,623 to 1, preserving signal integrity in industrial analog front ends without additional filtering.
For a transimpedance amplifier in a photodiode circuit, what advantage does the MCP603-I/SN's internal frequency compensation provide?
The internal frequency compensation of the MCP603-I/SN eliminates the need for external compensation capacitors, simplifying the PCB layout and reducing component count. This is valuable in transimpedance amplifiers with large photodiode capacitances, where incorrect external compensation can introduce oscillation or bandwidth degradation.
When would a designer choose MCP603-I/SN over a standard JFET-input op-amp for a precision resistive sensor circuit?
A designer would choose the MCP603-I/SN when SOIC-8 form factor, a 0.06 nA maximum bias current, and a guaranteed minimum 75 dB CMRR are needed alongside Pb-free compliance, particularly if the application runs on a single supply and standard JFET devices lack sufficient CMRR or introduce higher leakage currents at elevated temperatures.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6000 | $0.60 |
| 25+ | $0.5000 | $12.50 |
| 100+ | $0.4600 | $46.00 |
| 7500+ | $0.4167 | $3125.25 |
| 10000+ | $0.4074 | $4074.00 |
| 15000+ | $0.4064 | $6096.00 |
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